2010 XC60 Turbo Sounds

[quirozson]

Over the last few months I've monitored this and it is 100% connected to the climate control fan. It seems to happen mostly between (45-70) fahrenheit. It does go away with acceleration. It pops up on long coasting. It must be the ac compressor. I believe it is a known volvo problem. I just haven't been able to reproduce it for the Volvo tech so he keeps telling me he can't do anything unless he can hear it himself. It is very infrequent right now as the temps are staying 80-100 in CO right now.